Finding the Fourth Proportional to 10,381.59, 14,326.58 and 5,665.87

Step by Step Solution

1. Step 1: Write the proportion equation
   10,381.59 : 14,326.58 = 5,665.87 : x
2. Step 2: Convert to fraction form
   10,381.59/14,326.58 = 5,665.87/x
3. Step 3: Cross multiply
   10,381.59x = 14,326.58 × 5,665.87
4. Step 4: Simplify right side
   10,381.59x = 81,172,518.17
5. Step 5: Solve for x
   x = 81,172,518.17/10,381.59
6. Step 6: Final answer
   x = 7,818.89